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研究了聚１－三甲基硅基丙炔膜渗透汽化分离乙醇－水溶液传质的主要特点。发现膜对乙醇优先吸附、溶解，对水优先扩散。但因吸附液中水含量很低，总的结果表现为优先透醇。在３１３Ｋ，膜厚２０～２５μｍ，料液浓度１０ｗｔ％时，α＝１８．５，Ｊ＝０．９６９ｋｇ·ｍ－２·ｈ－１。透过膜的渗透液及其中的水和乙醇渗透汽化表观活化能分别为２８．８７、３１．３０和２７．６６ｋＪ／ｍｏｌ，并随料液浓度下降而增加。对实验数据进行非线性回归，建立了该膜传递乙醇的经验关联式：Ｊｅ＝－５．５６４Ｃ２Ｅ０＋１３．３４ＣＥ０－０．１５７３（ｋｇ·ｍ－２·ｈ－１），计算值与实验值相吻合。
The main characteristics of mass transfer of poly (1-trimethylsilyl) propyne membrane in pervaporation ethanol-water solution were studied. Found preferential adsorption of ethanol on the membrane, dissolved, preferential diffusion of water. However, due to the low content of water in the adsorption solution, the overall result is preferential alcoholysis. At 313K, the film thickness is 20-25μm and the concentration of the solution is 10wt%, α = 18.5 and J = 0.969kg · m-2 · h-1. Permeate through the membrane and the water and ethanol pervaporation of the apparent activation energy were 28.87,31.30 and 27.66kJ / mol, and with the feed concentration decreased. The experimental data were subjected to non-linear regression, and the empirical correlation of the membrane transport of ethanol was established: Je = -5.564C2E0 + 13.34CE0-0.1573 (kg · m-2 · h-1), the calculated value agrees with the experimental data .